Advanced Mg–Al–Ca Alloys with Combined Properties of High Thermal Conductivity, High Mechanical Strength and Non-Flammability
Yoshihito Kawamura, Kazuki Ougi, Shin‐ichi Inoue, Takanori Kiguchi, Makoto Takafuji, Hirotaka Ihara, Donald S. Shih
Abstract
High thermal conductivity, high strength and non-flammability have successfully been achieved concurrently for the first time in Mg–4.5Al–2.5Ca, Mg–5Al–3Ca, Mg–6Al–4Ca, and Mg–4Al–2Ca–0.03Be (at%) alloys, which are produced by hot extrusion of the heat-treated cast alloys. These alloys consist of α-Mg, and C36, C14 and C15 compounds, and exhibit a high thermal conductivity of 111–119 Wm−1K−1, a high ignition temperature of 1343–1408 K and a high tensile yield strength of 318–363 MPa.
Topics & Concepts
Materials scienceThermal conductivityUltimate tensile strengthFlammabilityExtrusionComposite materialConductivityMetallurgyChemistryPhysical chemistryMagnesium Alloys: Properties and ApplicationsAluminum Alloys Composites PropertiesMXene and MAX Phase Materials